皮皮学，免费搜题
登录
搜题
【单选题】
薄层色谱法中所用硅胶GF254,其中F254代表A.
这种硅胶通过了F254检验
B.
含吸收254nm紫外光的物质
C.
硅胶中配有在紫外光365nm波长照射下产生荧光的物质
D.
这种硅胶制备的薄层版在254nm紫外光照射下有绿色荧光背景
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】The movie is very .So the children are in it.
A.
interest; interested
B.
interested; interesting
C.
interesting ; interested
D.
interested ;interest
【单选题】The word kindled in Paragraph 1 is closest in meaning to______.
A.
produced
B.
interested
C.
improved
D.
aroused
【单选题】Civil servants should be as helpful as possible, and ______ information only in the interests of national security.
A.
deprive
B.
withhold
C.
violate
D.
affirm
【单选题】中国地处亚洲东部及太平洋西岸，地势走向总的趋势是西高东低，依次递降，呈现出三大阶梯式的地形面貌。其中第一阶梯为（）
A.
青藏高原
B.
东北平原
C.
大兴安岭
D.
太行山脉
【单选题】What is Peter's job title?
A.
Sales Executive
B.
Marketing Manager
C.
Managing Director
【单选题】The computer was used in teaching. As a result, not only _____ , but the students become more interested in the lessons. [ ]
A.
saved was teachers' energy
B.
was teachers' energy saved
C.
teachers' energy was saved
D.
was saved teachers' energy
【单选题】I don't know whether he is still_______ in collecting coins. He used to be, but that was several years ago. [ ]
A.
interested
B.
interesting
C.
interest
D.
disinterested
【单选题】The boy burned with ______ to know what was in the letter addressed to his sister.
A.
interest
B.
curiosity
C.
desire
D.
wish
相关题目：